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68 lines
1.5 KiB
Python
68 lines
1.5 KiB
Python
"""
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7. The lookup API
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This demonstrates features of the database API.
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"""
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from __future__ import unicode_literals
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from django.db import models
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from django.utils import six
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from django.utils.encoding import python_2_unicode_compatible
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class Author(models.Model):
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name = models.CharField(max_length=100)
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class Meta:
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ordering = ('name', )
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@python_2_unicode_compatible
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class Article(models.Model):
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headline = models.CharField(max_length=100)
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pub_date = models.DateTimeField()
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author = models.ForeignKey(Author, blank=True, null=True)
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class Meta:
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ordering = ('-pub_date', 'headline')
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def __str__(self):
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return self.headline
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class Tag(models.Model):
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articles = models.ManyToManyField(Article)
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name = models.CharField(max_length=100)
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class Meta:
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ordering = ('name', )
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@python_2_unicode_compatible
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class Season(models.Model):
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year = models.PositiveSmallIntegerField()
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gt = models.IntegerField(null=True, blank=True)
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def __str__(self):
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return six.text_type(self.year)
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@python_2_unicode_compatible
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class Game(models.Model):
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season = models.ForeignKey(Season, related_name='games')
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home = models.CharField(max_length=100)
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away = models.CharField(max_length=100)
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def __str__(self):
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return "%s at %s" % (self.away, self.home)
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@python_2_unicode_compatible
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class Player(models.Model):
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name = models.CharField(max_length=100)
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games = models.ManyToManyField(Game, related_name='players')
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def __str__(self):
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return self.name
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